1// Copyright 2019 Google LLC.
2// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3#include "tools/fiddle/examples.h"
4// HASH=afc62f38aebc56af8e425297ec67dd37
5REG_FIDDLE(Image_isValid, 256, 256, false, 5) {
6void draw(SkCanvas* canvas) {
7    auto dContext = GrAsDirectContext(canvas->recordingContext());
8    if (!dContext) {
9        return;
10    }
11
12    auto drawImage = [=](sk_sp<SkImage> image, const char* label) -> void {
13        if (nullptr == image) {
14            return;
15        }
16        SkFont font;
17        SkPaint paint;
18        paint.setAntiAlias(true);
19        canvas->drawImage(image, 0, 0);
20        canvas->drawString(label, image->width() / 2, image->height() / 4, font, paint);
21        if (dContext) {
22            const char* msg = image->isValid(dContext) ? "is valid on GPU"
23                                                       : "not valid on GPU";
24            canvas->drawString(msg, 20, image->height() * 5 / 8, font, paint);
25        }
26
27        const char* msg = image->isValid(nullptr) ? "is valid on CPU" : "not valid on CPU";
28
29        canvas->drawString(msg, 20, image->height() * 7 / 8, font, paint);
30    };
31    sk_sp<SkImage> bitmapImage(source.asImage());
32    sk_sp<SkImage> textureImage(SkImage::MakeFromTexture(dContext, backEndTexture,
33                                                         kTopLeft_GrSurfaceOrigin,
34                                                         kRGBA_8888_SkColorType,
35                                                         kOpaque_SkAlphaType, nullptr));
36    drawImage(image, "image");
37    canvas->translate(image->width(), 0);
38    drawImage(bitmapImage, "source");
39    canvas->translate(-image->width(), image->height());
40    drawImage(textureImage, "backEndTexture");
41}
42}  // END FIDDLE
43